City report · Rio Grande do Sul, Brazil
Rio Grande Air quality today
Air quality in Rio Grande currently reads AQI 29 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 29
Good
- PM2.5, fine particles (µg/m³)
- 6.3
- tree cover
- 12.6%
- trees in this area
- 26.1K
- more trees needed
- 36.0K
Measured across a 2 km radius around Centro, Rio Grande - RS, Brazil (12.57 km²), from a satellite image of Mar 2, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Rio Grande · AQI 29 (Good)
Rio Grande's tree count comes to 26,086 trees across 8.28 km² of land, 17 points below the 30% tree-cover level considered healthy for this area, so roughly 36,023 more trees would close the gap.
Air quality detail
Air quality in Rio Grande today: AQI 29, Good
Main pollutant: PM2.5 · Observed Nov 10, 19:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Air quality is satisfactory for everyone.
PM2.5
6.3
PM10
10.0
NO₂
3.2
O₃
55.0
SO₂
0.3
CO
86.0
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Rio Grande's daily AQI at 39 on average, from 20 on Nov 6 to an hourly peak of 57 on Nov 7.
Where Rio Grande stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Rio Grande: Critically low
12.6% tree cover against a 30% healthy-neighborhood target, across 8.28 km² of land.
Trees in this area
26,086
Target trees
62,109
More trees needed
36,023
CO₂ if planted / yr
792.5 t
Deforestation · 2001–2025
How much forest has Rio Grande lost?
Since 2001, the area within 10 km of Rio Grande has lost about 151 hectares of forest (about 210 football pitches): 31% of the forest it had in 2000. Most of it (55%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from January 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 151 haabout 210 football pitches
- Share of its forest
- 31%of what there was in 2000
- Cleared for good
- 82 hadeforestation: turned into farms, mines or towns
The worst year was 2006, when about 48 hectares of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | 1 ha | under 1 ha | 1 ha |
| 2004 | 2 ha | 10 ha | 12 ha |
| 2005 | 10 ha | 10 ha | 20 ha |
| 2006 | 35 ha | 13 ha | 48 ha |
| 2007 | 9 ha | 25 ha | 34 ha |
| 2008 | 3 ha | under 1 ha | 3 ha |
| 2009 | 5 ha | under 1 ha | 6 ha |
| 2010 | 4 ha | 5 ha | 9 ha |
| 2011 | 1 ha | under 1 ha | 2 ha |
| 2012 | 1 ha | 4 ha | 5 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | 5 ha | under 1 ha | 5 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | 1 ha | under 1 ha | 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | 1 ha | under 1 ha | 1 ha |
What is causing deforestation around Rio Grande?
- Towns and roadscleared for good31% · 48 ha
- Storms, floods and other natural causescan grow back31% · 46 ha
- Farms, pasture and plantationscleared for good18% · 27 ha
Also: wildfires, mining and energy, unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 452 ha
- Forest in 2020
- 341 ha
- Overall change
- −111 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Rio Grande shrank from about 452 hectares to 341 hectares, a net loss of about 111 hectares (−25%). New forest grew on about 48 hectares, but 158 hectares were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
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Frequently asked
Questions about Rio Grande
What is the air quality (AQI) in Rio Grande right now?
The latest reading for Rio Grande shows an AQI of 29 (Good), observed Nov 10, 19:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Rio Grande today?
At AQI 29 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Rio Grande been like this week?
Over the last 7 days, the CAMS air-quality model put Rio Grande's daily AQI at 39 on average, from 20 on Nov 6 to an hourly peak of 57 on Nov 7. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Rio Grande lost since 2001?
Since 2001, the area within 10 km of Rio Grande has lost about 151 hectares of forest (about 210 football pitches): 31% of the forest it had in 2000. Most of it (55%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Rio Grande shrank from about 452 hectares to 341 hectares, a net loss of about 111 hectares (−25%). New forest grew on about 48 hectares, but 158 hectares were lost.
What is the tree count in Rio Grande?
Rio Grande has an estimated 26,086 trees across the 8.28 km² of land measured — 12.6% tree cover, 17 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Rio Grande need?
Rio Grande needs roughly 36,023 more trees to close a 17-point shortfall against its 30% tree-cover target — about 792.5 t of extra CO₂ absorbed per year once grown.
How are Rio Grande's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Centro; the tree count is an estimate derived from that cover.
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